Max Pearson presents a collection of the week's Witness History interviews from the BBC World Service.

We hear how a speech by Swedish Prime Minister Olof Palme, in 1972, caused a break down in relations with the USA.

Our guest is an expert in the historic relations between Sweden and the US, Dr Saniya Lee Ghanoui from the University of El Paso in Texas.

Plus, the story of India’s secret first nuclear test in 1974, and Portugal’s worst train crash which killed 150 people.

We also learn about the invention of the mobility scooter in the 1960s and the only time the King of Rock n’ Roll, Elvis, set foot in the UK.

Contributors:

Jan Elliason – former Swedish diplomat.

Dr Saniya Lee Ghanoui – Assistant Professor of history at the University of El Paso.

Dr SK Sikka – former Indian nuclear scientist.

Américo Borges – Portuguese volunteer fire commander.

Al Thieme – the inventor of the mobility scooter.

Anne Murphy – Elvis superfan.

(Photo: Swedish Prime Minister Olof Palme in 1972 during the diplomatic freeze with the USA. Credit: Sjöberg Bildbyrå/ullstein bild via Getty Images)